Cofferdam structure for water conservancy and hydropower engineering building construction

Abstract

The utility model discloses a cofferdam structure for water conservancy and hydropower engineering building construction, and relates to the technical field of water conservancy and hydropower engineering building construction, the cofferdam structure comprises an inner corner pile and a connecting beam, inner surrounding piles are arranged and connected on both sides of the inner corner pile, the top of the inner corner pile is provided with an inserting drill rod, and the connecting beam is connected on the surface of one side of the inner surrounding pile in a sliding mode. According to the cofferdam structure for water conservancy and hydropower engineering building construction, through the use of the connecting beams, the effects of auxiliary connection and stability improvement can be achieved in the installation process of the inner corner piles and the inner surrounding piles, and the inserting drill rods can assist in the installation process of the inner corner piles, the inner surrounding piles, the outer surrounding piles and the outer corner piles as much as possible; the inner corner piles and the outer corner piles as well as the outer surrounding piles and the inner surrounding piles can penetrate into the position below a foundation structural plane as much as possible to ensure the structural stability of structural part installation, then the structural stability and supporting performance between the inner corner piles and the outer corner piles and between the outer surrounding piles can be guaranteed to the maximum degree in cooperation with structural use of the reinforcing frame, and effective safety is provided for operators in the whole cofferdam.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy and hydropower engineering construction, in particular to a cofferdam structure used for water conservancy and hydropower engineering construction. Background Art

[0002] A cofferdam is a temporary retaining structure built for permanent water conservancy facilities in water conservancy project construction. Its function is to prevent water and soil from entering the construction site of the building so that drainage can be done in the cofferdam, foundation pits can be excavated, and buildings can be built. It is generally used in hydraulic structures. Except as part of a formal building, the cofferdam is generally dismantled after use. The height of the cofferdam is higher than the highest water level that may occur during the construction period.

[0003] For example, the invention of application number 202311139862.8 discloses a steel sheet pile cofferdam combination structure, the cofferdam combination structure, the cofferdam main body, the cofferdam main body includes a plurality of steel sheet piles, the plurality of steel sheet piles enclose a rectangle, a support structure is arranged in the cofferdam main body, the support structure includes four support beams, the four support beams enclose a rectangle, the support beams and the steel sheet piles are abutted against each other on their sides, and a detachably connected fixing assembly is arranged between two adjacent support beams. The present application has the effect of facilitating the disassembly and transportation of the support structure, but similar to the cofferdam combination structure in the above-mentioned document, the support beams and the steel sheet piles are connected by a bolt structure, and this structural installation method is relatively convenient, but it is difficult to provide further structural auxiliary connection and stable support between the arranged and linked steel sheet piles, and the compressive resistance of the single-layer structure is relatively limited.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a cofferdam structure for construction of water conservancy and hydropower engineering is proposed. Utility Model Content

[0005] The utility model aims to provide a cofferdam structure for water conservancy and hydropower engineering construction to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cofferdam structure for construction of water conservancy and hydropower engineering, comprising inner corner piles and connecting beams, inner perimeter piles are arranged and connected on both sides of the inner corner piles, and a plunger is installed on the top of the inner corner piles, and a supporting oblique beam is obliquely connected between the inner corner piles and the inner perimeter piles, and a supporting beam is installed on the surface of the inner perimeter piles, the connecting beam is slidably connected to one side surface of the inner perimeter piles, and a reinforcement frame is installed on the side of the inner perimeter piles away from the connecting beam, and an outer perimeter pile is installed on the side of the reinforcement frame away from the inner perimeter piles, and one side of the outer perimeter piles is connected to an outer corner pile.

[0007] Furthermore, the inner piles are connected to each other by sliding and inserting with a mortise and tenon structure, and the inner piles and inner corner piles are connected by sliding and inserting with a mortise and tenon structure, and the inner piles and outer piles have the same structure.

[0008] Furthermore, the inserts are respectively threadedly installed on the bottom of the inner corner pile, the inner peripheral pile, the outer peripheral pile and the outer corner pile, and the two ends of the supporting inclined beam are structurally connected and fixed to the surface of the inner corner pile and the inner peripheral pile by bolts.

[0009] Furthermore, slot structures are provided at both ends of the inner side surface of the inner corner pile, and the connecting beam and the inner corner pile are slidably connected.

[0010] Furthermore, three groups of slot structures are provided from top to bottom on a side of the inner pile away from the surface reinforcement frame, and a surface structure on one side of the connecting beam matches the slot structure on the surface of the inner pile.

[0011] Furthermore, the reinforcement frame is structurally connected and fixed between the inner corner piles, the inner perimeter piles, the outer perimeter piles and the outer corner piles by bolts, and both left and right ends of the support beam are connected and fixed to the inner perimeter piles by bolts.

[0012] Furthermore, slot structures are provided at the left and right ends of the support beam, and the slot structure at one end of the support beam matches the surface structure on one side of the connecting beam.

[0013] Furthermore, the inner corner piles and the outer corner piles are both arranged with chamfered structures, and the reinforcement frame is symmetrically installed at the upper and lower ends between the inner peripheral piles and the outer peripheral piles.

[0014] The utility model provides a cofferdam structure for water conservancy and hydropower engineering construction, which has the following

[0015] Beneficial effects:

[0016] 1. The utility model provides a slot structure on one side surface of the inner corner pile and the inner perimeter pile so that the connecting beam can connect and fix the inner corner pile and the inner perimeter pile by horizontal insertion at the same time. At the same time, three groups of connecting beams are arranged from top to bottom, and the same number of supporting inclined beams and supporting beams are arranged to provide horizontal support at the diagonal and inner middle sections for the inner corner piles and the inner perimeter piles combined into a rectangular structure, so as to prevent the pressure generated by the external water body from affecting the entire structure, so as to ensure the internal support of the overall structure. At the same time, the use of the above structure can also effectively assist the operators in providing good support assistance during the assembly process and ensure the stability of the structural connection during the splicing and assembly process. On the other hand, the left and right ends of the supporting inclined beams and the supporting beams are provided with slot structures matching the surface structure of the connecting beams, so that while there is a flexible sliding insertion structure between the connecting beams, the supporting inclined beams and the supporting beams can be used to fix the connecting beams on the inner wall surface of the inner perimeter pile or the inner corner pile.

[0017] 2. The utility model, by respectively threading and vertically installing the plunger at the bottom of the inner corner pile, the inner perimeter pile, the outer perimeter pile and the outer corner pile, enables each structure to be inserted into the soil layer under the foundation as much as possible by utilizing the plunger's own structure during the piling installation process. On the one hand, the above structure can ensure that each structural member of the inner corner pile, the inner perimeter pile, the outer perimeter pile and the outer corner pile maintains its own structural stability during the piling installation process as much as possible, and reduces the problem of structural tipping. On the other hand, it can also ensure the support stability of the structure after installation to the greatest extent, and optimize and improve the structural support. In addition, when used in conjunction with the structure of the reinforcement frame, it can respectively play a good structural support and buffering role between the inner corner pile and the outer corner pile, and between the inner perimeter pile and the outer perimeter pile, thereby ensuring the compressive performance and overall support of the entire cofferdam structure itself as much as possible, so as to provide effective safety protection for the workers working inside the cofferdam. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the side view of the main body of a cofferdam structure used in the construction of a water conservancy and hydropower project according to the utility model;

[0019] Figure 2 This is a schematic diagram of the inner pile structure of a cofferdam structure used in the construction of a water conservancy and hydropower project according to the utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the inner corner piles of a cofferdam structure used in the construction of a water conservancy and hydropower project according to the utility model;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the outer corner piles of a cofferdam structure used in the construction of a water conservancy and hydropower project according to the utility model;

[0022] Figure 5 This is a three-dimensional structural schematic diagram of a supporting beam and a supporting inclined beam of a cofferdam structure used in the construction of a water conservancy and hydropower project according to the utility model;

[0023] Figure 6 The utility model is a schematic diagram of the three-dimensional structure of a reinforcement frame of a cofferdam structure used in the construction of a water conservancy and hydropower project.

[0024] In the figure: 1. Inner corner pile; 2. Inner perimeter pile; 3. Insertion drill; 4. Supporting inclined beam; 5. Supporting beam; 6. Connecting beam; 7. Strengthening frame; 8. Outer perimeter pile; 9. Outer corner pile. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0026] like Figures 1 to 6 As shown, a cofferdam structure for construction of water conservancy and hydropower engineering projects comprises an inner corner pile 1 and a connecting beam 6, inner perimeter piles 2 are arranged and connected on both sides of the inner corner pile 1, and a plugging drill 3 is installed on the top of the inner corner pile 1, and a supporting oblique beam 4 is obliquely connected between the inner corner pile 1 and the inner perimeter pile 2, and a supporting beam 5 is installed on the surface of the inner perimeter pile 2, the connecting beam 6 is slidably connected to one side surface of the inner perimeter pile 2, and a reinforcing frame 7 is installed on the side of the inner perimeter pile 2 away from the connecting beam 6, and an outer perimeter pile 8 is installed on the side of the reinforcing frame 7 away from the inner perimeter pile 2, and one side of the outer perimeter pile 8 is connected to an outer corner pile 9, the inner perimeter piles 2 are connected to each other by sliding insertion using a mortise and tenon structure, and the inner perimeter pile 2 and the inner corner pile 1 are connected by a mortise and tenon structure. The inner pile 2 and the outer pile 8 have the same structure. The inserting drill 3 is respectively threadedly installed on the bottom of the inner angle pile 1, the inner pile 2, the outer pile 8 and the outer angle pile 9, and the two ends of the supporting inclined beam 4 are respectively connected and fixed to the surface of the inner angle pile 1 and the inner pile 2 by bolts. A slot structure is provided on the surface of one side of the inner angle pile 1 and the inner pile 2 so that the connecting beam 6 can connect and fix the inner angle pile 1 and the inner pile 2 by horizontal insertion at the same time. At the same time, three groups of connecting beams 6 are arranged from top to bottom, and the same number of supporting inclined beams 4 and supporting beams 5 are arranged to provide horizontal support at the diagonal and inner middle sections of the inner angle piles 1 and the inner piles 2 combined into a rectangular structure.

[0027] like Figures 1 to 6 As shown, both ends of the inner side surface of the inner corner pile 1 are provided with slot structures, and the connecting beam 6 is slidably connected to the inner corner pile 1, and three sets of slot structures are provided from top to bottom on the side of the inner peripheral pile 2 away from the surface reinforcement frame 7, and the surface structure of one side of the connecting beam 6 matches the surface slot structure of the inner peripheral pile 2, and the reinforcement frame 7 is respectively connected and fixed between the inner corner pile 1, the inner peripheral pile 2, the outer pile 8 and the outer corner pile 9 by bolts, and the left and right ends of the support beam 5 are connected and fixed to the inner peripheral pile 2 by bolts, and the left and right ends of the support beam 5 are provided with slots The structure is shown in FIG. 1 , and the slot structure at one end of the support beam 5 matches the surface structure of one side of the connecting beam 6. The inner corner pile 1 and the outer corner pile 9 are both chamfered. The reinforcement frame 7 is symmetrically installed at the upper and lower ends between the inner peripheral pile 2 and the outer peripheral pile 8. The inner corner pile 1, the inner peripheral pile 2, the outer peripheral pile 8 and the outer corner pile 9 are respectively threadedly connected and vertically installed with the insert drill 3 at the bottom. During the piling installation process, each structure can use the insert drill 3 itself to insert it into the soil layer under the foundation as much as possible, so as to maximize the support stability of the structure after installation.

[0028] In summary, if Figures 1 to 6As shown, the cofferdam structure for the construction of water conservancy and hydropower engineering, when in use, firstly screw the inserting rod 3 into the bottom of a group of inner corner piles 1, then use an external lifting engineering vehicle to lift it just above the installation position, and drive it into the foundation by a pile driver or other equipment;

[0029] Then, several inserts 3 are screwed into the bottoms of several inner piles 2 in the same way, and the inner piles 2 and the inner corner piles 1, as well as the inner corner piles 1 are connected in the vertical direction through the mortise and tenon structure. After a certain number of devices are assembled, the supporting inclined beam 4 is horizontally erected in front of the inner corner pile 1 according to the construction needs, and the supporting beam 5 is horizontally erected between the inner piles 2 on the left and right sides to ensure the support of the overall structure.

[0030] Then, the three groups of connecting beams 6 are respectively inserted into the surfaces of the inner corner piles 1 and the inner perimeter piles 2 with slot structures by sliding horizontally from top to bottom in the horizontal direction, so as to connect and fix the inner corner piles 1 and the inner perimeter piles 2 and provide structural support.

[0031] After the inner corner piles 1 and the inner surrounding piles 2 can be enclosed into a complete rectangular structure, a plurality of reinforcing frames 7 are symmetrically installed on the side of the inner surrounding piles 2 and the inner corner piles 1 away from the connecting beam 6. After all the reinforcing frames 7 are installed, a plurality of outer piles 8 are connected and fixed to the other side of the reinforcing frames 7 by using a combination of mutually perpendicular mortise and tenon joints, so that the inner surrounding piles 2 and the outer piles 8, as well as the inner corner piles 1 and the outer corner piles 9 are connected and fixed to each other into an integral structure, and finally a double-layer rectangular cofferdam structure is formed so that the construction personnel can carry out subsequent construction work.

[0032] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A cofferdam structure for use in water conservancy and hydropower engineering construction, comprising an inner corner pile (1) and a connecting beam (6), characterized in that: Inner peripheral piles (2) are arranged and connected on both sides of the inner angle pile (1), and a plug (3) is installed on the top of the inner angle pile (1), and a supporting oblique beam (4) is obliquely connected between the inner angle pile (1) and the inner peripheral pile (2), and a supporting beam (5) is installed on the surface of the inner peripheral pile (2), the connecting beam (6) is slidably connected to one side surface of the inner peripheral pile (2), and a reinforcing frame (7) is installed on the side of the inner peripheral pile (2) away from the connecting beam (6), and an outer peripheral pile (8) is installed on the side of the reinforcing frame (7) away from the inner peripheral pile (2), and one side of the outer peripheral pile (8) is connected to an outer angle pile (9).

2. A cofferdam structure for water conservancy and hydropower engineering construction according to claim 1, characterized in that: The inner piles (2) are connected to each other by sliding and inserting with a mortise and tenon structure, and the inner piles (2) and the inner corner piles (1) are connected by sliding and inserting with a mortise and tenon structure, and the inner piles (2) and the outer piles (8) have the same structure.

3. The cofferdam structure for water conservancy and hydropower engineering construction according to claim 1 is characterized in that: The inserts (3) are respectively threadedly installed on the bottoms of the inner corner piles (1), the inner peripheral piles (2), the outer peripheral piles (8) and the outer corner piles (9), and the two ends of the supporting inclined beam (4) are respectively structurally connected and fixed to the surfaces of the inner corner piles (1) and the inner peripheral piles (2) by bolts.

4. The cofferdam structure for water conservancy and hydropower engineering construction according to claim 1 is characterized in that: Both ends of the inner side surface of the inner corner pile (1) are provided with slot structures, and the connecting beam (6) and the inner corner pile (1) are slidably connected.

5. The cofferdam structure for water conservancy and hydropower engineering construction according to claim 1 is characterized in that: The side of the inner pile (2) away from the surface reinforcement frame (7) is provided with three groups of slot structures from top to bottom, and the surface structure of one side of the connecting beam (6) matches the slot structure on the surface of the inner pile (2).

6. The cofferdam structure for water conservancy and hydropower engineering construction according to claim 1 is characterized in that: The reinforcing frame (7) is structurally connected and fixed between the inner corner pile (1), the inner perimeter pile (2), the outer perimeter pile (8) and the outer corner pile (9) by bolts, and the left and right ends of the support beam (5) are connected and fixed to the inner perimeter pile (2) by bolts.

7. The cofferdam structure for water conservancy and hydropower engineering construction according to claim 1 is characterized in that: The left and right ends of the support beam (5) are provided with slot structures, and the slot structure at one end of the support beam (5) matches the surface structure of one side of the connecting beam (6).

8. The cofferdam structure for water conservancy and hydropower engineering construction according to claim 1 is characterized in that: The inner corner pile (1) and the outer corner pile (9) are both arranged with chamfered structures, and the reinforcing frame (7) is symmetrically installed at the upper and lower ends between the inner peripheral pile (2) and the outer peripheral pile (8).

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